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Monthly Weather Bulletin



The country generally has experienced the hot and dry weather during the last February. While this is a normal condition during the last phase of the Northeast Monsoon but this condition at same time a bit extreme. One of the factors causing this condition is a typically tropical weather system in the eastern part of country has moved far to the west of the Pacific Ocean. At that time, the atmosphere is very stable also causing less rainfall in the Peninsula and Sarawak. Rainfall distribution over Peninsula and Sarawak has recorded more than 60 % below average. However, in western Sabah has received more wet weather conditions with rainfall distribution between 20 % and 40 % above average. Based on the records of the Main Meteorological Station in Malaysia temperature recorded relatively high compared to the average in February, as well as records of solar radiation and evaporation rate.


Peninsula has received less rainfall distribution over 60 % of the average and rainfall amount less than 100 mm for all areas. In fact there are 9 principal meteorological stations recorded no rain during the month. Number of days without rain since the beginning of the year has also been reported to exceed the previous record. Stations that do not receive rainfall throughout the last February are Meteorological Station Prai, Langkawi, Alor Setar, Chuping, Kuala Krai, Kuala Terengganu, Kuala Pilah, Malacca and Kluang. The highest rainfall amount has recorded at Meteorological Station Cameron Highlands with the amount 64.6 mm.

For Sarawak, most of the area has experience dry weather conditions which in Kuching, Samarahan, Bintulu, Sarike, Sri Aman and Miri Divisions with a total reduction of rainfall are 60 % below the average. While other part has received rainfall distribution between 20% and 40 % below average with rainfall amount less than 100 mm. The highest record of rainfall was in Meteorological Station Kuching with amount 205.4 mm, while the lowest rainfall amount recorded at the Meteorological Station Miri with rainfall amount 29.0 mm.

Instead of Sabah, rainfall distribution increase up to 60 % above the average experienced in the West Coast, Interior, Kudat and Sandakan Divisions, while other parts received the normal rainfall amount between 100 mm to 300 mm. Meteorological Station Kudat recorded the highest rainfall amount with amount 363.8 mm and Meteorological Station Kota Kinabalu has recorded rainfall amount about 72.8 mm, for the lowest record.

In February, most of the station in the peninsula has recorded the lowest number of rain days. The lowest number of rain days has recorded are 1 day at Meteorological Station Kota Bharu, Mersing and Senai, while the highest number of rain days are 6 days where recorded at Meteorological Station Cameron Highlands. In Sarawak, the range of the number of rain days is between 6 days recorded at Meteorological Station Sri Aman and 14 days recorded at Meteorological Station Limbang. For Sabah, the number of rain days has recorded from 7 days at Meteorological Station Kota Kinabalu to 14 days at Meteorological Station Sandakan.



In generally, almost all areas have recorded temperature higher than the mean long term in February. At the lowlands areas, the average monthly temperatures range from 23.2 ° C at Meteorological Station Ranau and 28.6 ° C at Meteorological Station Subang with the largest deviation is 1.7 ° C, at Meteorological Station Petaling Jaya.

The mean minimum temperature for the lowland areas ranged from 19.1 ° C at Meteorological Station Ranau to 25.4 ° C at Meteorological Station Petaling Jaya. The lowest temperature recorded for the month is Meteorological Station Ranau with readings of 13.6 ° C.

The mean maximum temperature for the lowland areas ranged from 28.9 ° C at Meteorological Station Kudat to 35.6 ° C at Meteorological Station Chuping. The highest temperature of the month was recorded at the Meteorological Station Chuping and Alor Setar with readings of 37.0 ° C.

The single station for the highlands areas is Meteorological Station Cameron Highlands, where recorded a temperature ranged from 11.7 ° C to 24.8 ° C with an average temperature of 17.9 ° C.



About 24 stations has recorded solar radiation data in February 2014 and the value of solar radiation for this month is higher than average. The average range solar radiation at lowland areas are from 15.29 - ² MJm at Meteorological Station Bayan Lepas and 24.63 MJm - ² at Meteorological Station KLIA Sepang. Average solar radiation in the highland areas is 20.66 MJm - ² at Meteorological Station Cameron Highlands. The solar radiation is affected by cloud cover, when there are less cloud coverage, its more solar radiation direct to earth, beside that if more cloud cover over the sky, the solar radiation becomes less. The largest positive deviation from normal is +5.98 MJm - ² at Meteorological Station Subang and the largest negative deviation from normal is -4.98 MJm - ² at Meteorological Station Bayan Lepas.


Average daily evaporation rates for low-lying areas are varied from 3.3 mm/day at Meteorological Station Kuching and Sibu, and 7.4 mm/day at Meteorological Station Melaka. Main factors that affect the rate of evaporation are the dry air conditions and surface temperature. When surface temperatures high and dry air condition, evaporation rates value high. But if a day cloudy, the value of rate is low. The largest positive deviation recorded at Meteorological Station KLIA Sepang is +2.3 mm/day. The average rate of evaporation for highland area, Meteorological Station Cameron Highlands recorded a reading of 3.3 mm/day and deviation from normal +1.1 mm / day.

Figures :

FIGURE 1 : Rainfall Map for Malaysia

FIGURE 2a : Mean Monthly Temperature

FIGURE 2b : Mean Monthly MaximumTemperature

FIGURE 2c : Mean Monthly MinimumTemperature


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